I wouldn't think drive type would matter, if its almost full performance will suffer. For what its worth I have 57.7 GB used on my OS partition. Thats Windows, Office, some programs and a couple of games. Thats not counting My Documents, Pictures, Music etc that is on my Data partition. A 60 gig drive might not be enough depending on what kind of software you plan on using. I know it wouldn't be big enough for my setup.